Display screen or portion thereof with a graphical user interface



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A portion of the disclosure of this patent document contains material which is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but otherwise reserves all copyright rights whatsoever

FIG. 1 is a front view of a first embodiment of a display screen or portion thereof with a graphical user interface;

FIG. 2 is a front view of a second embodiment of a display screen or portion thereof with a graphical user interface;

FIG. 3 is a front view of a third embodiment of a display screen or portion thereof with a graphical user interface;

FIG. 4 is a front view of a fourth embodiment of a display screen or portion thereof with a graphical user interface;

FIG. 5 is a front view of a fifth embodiment of a display screen or portion thereof with a graphical user interface; and,

FIG. 6 is a front view of a sixth embodiment of a display screen or portion thereof with a graphical user interface.

The dot-dashed broken lines depict the display screen or portion thereof and form no part of the claimed design. 

CLAIM The ornamental design for a display screen or portion thereof with a graphical user interface, as shown and described. 